Email .csv(excel format):

.h file:

#import <MessageUI/MessageUI.h>

@interface ViewController : UIViewController<MFMailComposeViewControllerDelegate>

.m file:

@interface ViewController ()

{    

    NSMutableArray * expansesArray;

    NSString *Expensereport, *emailbody;

    MFMailComposeViewController *mc;

}

-(IBAction)sendmail:(id)sender{

    

    Expensereport = [NSString stringWithFormat:@"Expense report for"];

    emailbody = [NSString stringWithFormat:@"Dear, \n\n Attached to this mail is the expense report for as per ."];

    /* ================= CSV FILE ================*/

    

 NSMutableString *csv;

        csv = [NSMutableString stringWithString:@" , , "];

        

        [csv appendFormat:@"\n\"%@\",%@,\"%@\"",[NSString stringWithFormat:@"NAME"],[NSString stringWithFormat:@"%@ %@",self.sFname,self.sLname],@""];

        

        [csv appendFormat:@"\n\"%@\",%@,\"%@\"",[NSString stringWithFormat:@"AMOUNT"],[NSString stringWithFormat:@"%@ %.2f",BudgetLabel.text,person_amt],@""];

        

        [csv appendFormat:@"\n\"%@\",%@,\"%@\"",[NSString stringWithFormat:@"AVERAGE"],[NSString stringWithFormat:@"%@ %.2f",BudgetLabel.text,(Tot_exp / Tot_per)],@""];

        

       [csv appendFormat:@"\n"];

        

        [csv appendFormat:@"\n\"%@\",%@,\"%@\"",@"Item name",@"Date",@"Amount"];

        

        [csv appendFormat:@"\n"];

               

        NSUInteger count = [expansesArray count];

        // provided all arrays are of the same length

        for (NSUInteger i=0; i<count; i++ ) {

            

            NSDictionary *tmpDict = [expansesArray objectAtIndex:i];

            

            NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

            [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

            NSDate *date1 = [dateFormatter dateFromString: [tmpDict objectForKey:datetime_exp]];

            dateFormatter = [[NSDateFormatter alloc] init] ;

            [dateFormatter setDateFormat:@"dd-MMM-yyyy"];

            NSString *DateString = [dateFormatter stringFromDate:date1];

            

            [csv appendFormat:@"\n\"%@\",%@,\"%f\"",

             [tmpDict objectForKey:item_name],

             DateString,

             [[tmpDict objectForKey:expenses_amount] floatValue]

             ];

        }

        

        NSArray *sysPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory ,NSUserDomainMask, YES);

        NSString *docPath = [sysPaths objectAtIndex:0];

        NSString *surveys = [docPath stringByAppendingPathComponent:@"expense.csv"];

        NSError *error;

        BOOL res = [csv writeToFile:surveys atomically:YES encoding:NSUTF8StringEncoding error:&error];

        if (!res) {

            NSLog(@"Error %@ while writing to file %@", [error localizedDescription], surveys );

        }        

        

        mc = [[MFMailComposeViewController alloc] init];

        if ([MFMailComposeViewController canSendMail]) {

            mc.mailComposeDelegate = self;

            [mc setSubject:Expensereport];

            [mc setMessageBody:emailbody isHTML:NO];

            

            [mc addAttachmentData:[NSData dataWithContentsOfFile:surveys]

                         mimeType:@"text/csv"

                         fileName:@"expense.csv"];

            // Present mail view controller on screen

            [self presentViewController:mc animated:YES completion:NULL];

        }

}

- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error

{

    switch (result)

    {

        case MFMailComposeResultCancelled:

            NSLog(@"Mail cancelled");

            break;

        case MFMailComposeResultSaved:

            NSLog(@"Mail saved");

            break;

        case MFMailComposeResultSent:

            NSLog(@"Mail sent");

            break;

        case MFMailComposeResultFailed:

            NSLog(@"Mail sent failure: %@", [error localizedDescription]);

            break;

        default:

            break;

    }

    

    [self dismissViewControllerAnimated:YES completion:NULL];

}